Air India's Dreamliner fleet suffered 136 "minor" technical problems between their delivery since September last year and till late last month and all these problems were fixed by technical teams of the airline and Boeing, Civil Aviation Minister Ajit Singh said on Monday.

India's aviation regulator said on Saturday it was closely following developments after a fire broke out in a Boeing 787 Dreamliner parked at London's Heathrow airport, and was awaiting to see the cause of the incident before taking any action.

Stocks on major bourses posted their best weekly gains since November on Friday, helped by corporate earnings reports and remarks by Federal Reserve officials calming investor fears about US monetary policy.

Boeing Co's 787 Dreamliner was set to be a game-changer for the commercial airplane industry as its use of lighter materials and new construction methods promised huge savings in fuel and maintenance costs.

Air India's latest acquisition, the Boeing 787 Dreamliner, is likely to shore up the fortune of India's national carrier as passengers are giving big thumbs up after travelling in the next generation flying machine.

The national carrier's total revenue is expected to go up from Rs 16,130 crore in 2012-13 to Rs 19,393 crore in 2013-14, Civil Aviation Minister Ajit Singh said at a function here to celebrate completion of Air India's 65 yeas of service on the London route.

Air India has six Dreamliners and has ordered 21 more. The planes have been grounded worldwide since January following incidents of overheating in the batteries providing auxiliary power. Boeing has since worked to develop new battery housings to prevent a repeat of the incidents.

A team of engineers from US aerospace giant Boeing is arriving here on Tuesday to reset the batteries of six Dreamliner aircraft of Air India which are grounded since January after battery fire incidents, sources in the national carrier said.

Air India is likely to emerge as a cash surplus company in the next financial year with a net earning of over Rs 1,000 crore on the back of high passenger revenue and sale and lease back of Boeing 787 Dreamliners.